Chromosome-level genome assembly and annotation of Anthurium amnicola
Abstract
Anthurium amnicola is in the monocot family Araceae, subfamily Pothoideae and is a contributing species in Hawaii floriculture industry hybrids. To support future genetic improvements to this commodity, we sequenced and assembled the A. amnicola genome to chromosome-scale using PacBio HiFi and short-read Hi-C sequencing. A total of 98.51% of the 4.79 Gb genome is anchored into 15 chromosomes, with 99.2% gene completeness and a high LTR assembly index (LAI) score of 21.73, indicative of a complete, high-quality assembly. Annotation reveals the presence of 20,380 protein-coding genes, with 78.52% of the genome composed of repetitive sequences, predominantly long terminal repeat retrotransposons (LTR-RT). Phylogenetic analysis identified evolutionary relationships between A. amnicola and representative species in the Araceae and other plant families. This study provides the first reference genome sequence for the neotropical genus Anthurium and insights into Araceae evolution, benefiting the floriculture industry and evolutionary studies.
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